Conduit having annular ribs, a sump, and sediment directing means



Dec. '9, 1947. H. J. GOODYER GONDUIT HAVING ANNULAR RIBS, A SUMP, AND SEDI'MENT DIRECTING MEANS Filed Dec. 29, 1945 Patented Dec. 9, 1947 CONDUIT HAVING ANNULAR RIBS, A SUMP,

AND SEDIMENT DIRECTING MEANS Harold J. Goodyer, Chicago, 111.

Application December 29, 1943, Serial No. 516,013

Claims.

structed that it .may be used as a medium for transferring heat from. or to, the fluid under pressure flowing therethrough or as an instrumentality for separating foreign substances or particles from the fluid or as a combined heat exchanger and separator.

Another object of the invention is to provide a conduit of the last mentioned character which comprises a tubular open ended casing having a longitudinally extending series of spaced apart external annular ribs and a longitudinally extending series of spaced apart internal annular ribs, and also comprises a helical baffle which extends longitudinally through the casin and serves to cause the fluid passing through the casing to flow or impinge against the internal ribs.

A further object of the invention is to provide a conduit of the type and character last mentioned in which the helical baflle in the casing is supported so that it is rotatable about its axis.

A still further object of the invention is to provide a conduit of the type under consideration which is characterized by high efiiciency and also simplicity of design or construction.

Other objects of the invention and the various advantages and characteristics of the present conduit will be apparent from a consideration of the following detailed description.

The invention consists in the several novel features which are hereinafter set forth and are more particularly defined by claims at the conclusion hereof.

In the drawing which accompanies and forms a part of this specification or disclosure and in which like numerals of reference denote corresponding parts throughout the several views:

Figure 1 is a plan view of a conduit embodying the invention, certain parts being broken away and other parts being shown in section for illuse trative purposes; and

Figure Z is a transverse section taken on the line 2--2 of Figure 1.

The conduit which is shown in the drawing constitutes the preferred form or embodiment of the invention. It is designed to be interposed in, and to form a part of, a pipe system (not shown) for fluid under pressure and functions as a heat exchanger or an instrumentality tor sure passing through the casing separating foreign substances or particles from the fluid under pressure flowing therethrough or as a combined heat exchanger and separator. As its main or principal parts the conduit comprises a tubular casing 3 and a helical baflle 4.

The casing 3 is preferably in the form of'a one-piece casting of aluminum, brass or any other material having high heat conductivity. It is adapted to extend horizontally and embodies at its ends integral out-turned annular fiangesi whereby it may be connected to adjoining flange equipped pipe sections of the system in which the conduit is employed. The flanges 5 are provided with holes 6 for accommodating bolts or other attaching instrumentalities. In addition to the flanges 5 the casing 3 embodies a longitudinally extending series of external annular ribs 1 and a longitudinally extending series of internal annular ribs 8. The external ribs 1 'are formed integrally with the casing and are spaced equidistantly apart. They are the same in diameter and define ring-shaped pockets 9 between them. The internal ribs 8 are formed integrally with the casing as shown in Figure 1. 'They are spaced equidistantly apart and are disposed midway between the external ribs 1. The spaces between the internal ribs 8 constitute ringshaped pockets l0. As shown in the drawing the internal ribs 8 are of less thickness than radial width and are so spaced apart that the ring shaped pockets ID that are between'them are of greater depth than thickness. By having the internal ribsof less thickness than radial width and having the ring shaped pockets 10 of greater depth than thickness the conduit, especially when it is used for separating foreign substances or particles from fluid under pressure, possesses extremely high efiiciency. The bottom portion .of the casing 3 is provided with a pair of longitudinally extending depending laterally spaced walls II and a crosswall l2 between the lower margins of the walls H and these walls define a longitudinal sump 13 which communicates with the lower portions. of allthering-shaped pockets l0 and extends from one flanget, to the otheras shown in Figure 1. When the conduit is used as an instrumentality for separating foreign substances or particles-from the fluid under pres- 3 the foreign substances or particles which collect in the pockets l0 gravitate into the sump i3 and are there collected. A vertically extending discharge opening M is formed in the crosswall l 2 this is normally closed by a screw plug l5. When itis desired to remove the collectedsubstances or particles in the sump the screw plug [5 is removed so as to uncover the discharge opening M.

The helical baffle 4 is disposed in, and extends longitudinally of, the casing 3 of the conduit. It extends around, and is secured to, a horizontal shaft I6 and is of slightly less diameter than the internal diameter of the internal annular ribs enfih ee de s in se. h .fl isi n e pressure passing or flowing through the tubular casing 3" engages the baflle 4 and hence is caused to travel in a spiral or helical course through the casing and to come into intimate contact with the internal ribs 8'. The ends of the shaft [6 are supported by way. or a: pail or" ball bearings I! in order that the helical baflle is free to rotate about its axis. When the conduit is in use the fluid under pressure passingthrough the casing impinges against the bafile as heretofore pointed out, and causes the" ba'file an balls 20 between the inner an-d outer races;

Theinner races tend around, and are shrunk one; reduced extensions 2f at the ends of the baflle carryin gishaftfl f6. Theouter races r9 or the' ball' bearings r1 fit within 'lin'd'rical recesses Z fin the hubs of pair of spiders 2 3 at the ends oitheconduit' casing The Spiders are provided with 24 nd these fit within engineer he: riph eries of the out-turned annular'flang es 5 and are: removably secured thereto by way of screw thread connections 25'. I

the conduit is connected in place in a pipe system havin'g'fluiid under pressure flowing thr ugh thjenuiq when assing or travelling through the tubular, casing 3 of the conduit en counters the helicalbaffi d and, previously pointed; out, cause s t he battle to rotate a'sthe result of frictional engagement therewith. Because of the action of the baflie the dfluid. travels spirally or helically through the casing and is hence brought into, contact with theannular internal ribs 8: Such ribs; together with the external ribs '1; serve to transfer heat fromor to, the fluid; depending upon whether the substance surrounding the conduit casing, orthe fluid isof higher temperature. Should the fluid under pressure passing through the casing have foreign substances or particles suspended therein such substances or particles are caused toloclge in the ring-shaped pockets l and then. gravitate into the sump l3 from whence they may be discharged by removal of the screw plug I5.- j

The'herein described conduit possesses, high efficiency and is characterized by simplicity of design or construction: In addition it has many capabilities of use; for example; the conduit may fi n the high- B' E ip line between 1?? Qmp'i'e's'sor and condenser of-a' mechanical refrigerating When used in thisp'articw lar capacity the conduit serves not only as a medium for dissipating-heat from the compressed re r e ant net ing through the casing, but. also n instrumentality for ridding the refrigerant of oil and any other foreign-substances therein. invention is not to be understood as restrictedto thedetails set forth since-these may be modified' within the scope of theapp n eg claims without departing from the spirit and scope of the invention.

Having thus described the invention, what I claim as new and desire to secure by Letters Patent is:

1. An elongated conduit adapted to have fluid type material pass normally only longitudinally through it and comprising a substantially imerforate tubular" casifig havin a longitudinal series of ed'uidistantly spaced transversely extending independent truly annular single thickness internal ribs of less thickness than the radial width andso spaced apart that they form between them? ring shaped pockets of greater depth than thickness, and a helical baflle mounted catranym; and extending longitudinally of, the casing and-serving to cause the material passing through the casing to flow against the ribs.

23 elongated conduit adapted during use to have fluid under pressure flow only longitudinally therethroughand comprisingan imperforate tubular casing having a longitudinal seriesof equi= distantly spaced?transversely-extending independ: ent truly ann'u'lar single: thickness internal ribs of the same internal diameter-mfless thickness than radial width; and so spaced apart that they form between them ring? shaped pockets of greater depth than thickness; stationary spiders m'ounted fixedly in the ends of the casing and provided with centrally disposed hubs with'bearings'therein; a shaft extending longitudinally and centrally through the casing and having the, ends thereof journalled in said bearingsin the hubs of the spiders, and a helical baiiile extendingaround, and" fixedly secured to; the shaft and having.- the diameter thereof" substantially the same as the internal diameter of the ribs.

3. A' conduit adapted to have fluid under ressure flow therethrough and comprising a tubular horizontally disposed casing having a longitudinal series of spaced apart transversely extending annular internal ribs and embodying at the bottom portion thereof a longitudinal depending sump in communication with the lower portions of the spaces? between the ribs, and baffle means in the casing for causing the fluid passing through said casing to flow against the ribs.

4. A conduit adapted to have fluid under pressure flow therethrough and comprising a tubular horizontally disposed casing having a longitudinal series of spaced apart transversely extending annular internal ribs and embodying at the bottom portion thereof a longitudinal depending sump in communication with the lower portions ,of the spaces between the ribs, anda helical baflle extending longitudinally through the easing and having the diameter thereof substantially the same as the internal diameter oftheribs.

5. A conduit adapted to have fluid under pressure flow therethrough and comprising a tubular horizontally disposed casing having a longitudinal series of spaced apart transversely extending annular external. ribs and a. longitudinal series of spaced apart. annular internal ribs and embodying at the bottom thereof means forming a depending longitudinal sump in. communication with the lower portions of they spaces between the internalribs; and a helicalbafile disposed in, and extending longitudinally of. the casing.

6. A- conduit adapted t-o'have fluid under pressure flow therethrough and comprising a tubular horizontally disposed casting-formed casing having a longitudinal series of equidistantly spaced apart transversely extending annular external ribs; and a longitudinal series of equidistantly spaced transversely extending annular internal ribs disposed midway between the external ribs, and embodying at the bottom thereof integral means forming a dependin longitudinal sump in communication with the lower portions of the spaces between the internal ribs, and a helical baflle extending longitudinally through the casing and having the diameter thereof substantially the same as the internal diameter of the inter-- nal ribs.

7. A conduit adapted to have fluid under pressure flow therethrough and comprising a tubular horizontally disposed casting-formed casing having a longitudinal series of equidistantly spaced apart transversely extending annular external ribs, and a longitudinal series of equidistantly spaced transversely extending annular internal ribs disposed midway between the external ribs, and embodying at the bottom thereof integral means forming a depending longitudinal sump in communication with the lower portions of the spaces between the internal ribs, and a helical bafiie disposed centrally in, and extending longitudinally of, the casing and mounted so that it is rotatable about its axis.

8. A conduit adapted to have material pass longitudinally therethrough and comprising an imperforate tubular horizontally disposed casing having a series of spaced apart internal ribs and embodying at the bottom portion thereof an integral longitudinal depending sump in direct communication with the lower portions of the spaces between said ribs, and a helical bafile mounted in, and extending longitudinally of, the casing and serving to cause the material passing through the casing to impinge against the ribs.

9. A conduit adapted to have fluid material flow therethrough and comprising a substantially imperforate tubular casing having a series of spaced apart internal ribs and embodying integral means forming a longitudinal sump in communication with the interior of the casing, and a helical element disposed centrally in, and extending longitudinally of, the casing, mounted so that it is rotatable about its axis and serving to cause the material passing through the casing to impinge against the ribs.

10. An elongated conduit adapted during use to have fluid material flow longitudinally therethrough and comprising a substantially imperforate tubular casing having a longitudinal series 5 of equidistantly spaced, transversely extending,

independent, truly annular, single thickness internal ribs of the same internal diameter, of less thickness than radial width, and so spaced apart that they form between them ring shaped pockets 10 of greater depth than thickness, and a helical bafile mounted in, and extending longitudinally through, the central portion of the casing, having the diameter thereof substantially the same as the internal diameter of the ribs, and serving to cause the material passing through said casing to flow against said ribs.

HAROLD J. GOODYER.

REFERENCES CITED UNITED STATES PATENTS Number Name Date 653,677 Ibert July 17, 1900 1,179,669 Siepmann Apr. 18, 1916 1,831,473 Adams Nov. 10, 1931 1,900,394 Cottrell Mar. 7, 1933 1,496,345 Lichtenthawler June 3, 1924 1,880,185 Kerns et al Sept. 27, 1932 2,342,774 Wheatley Feb. 29, 1944 2,207,399 Gaertner July 9, 1940 2,244,800 Pascale June 10, 1941 2,281,207 Schoen Apr. 28, 1942 D. 24,493 Ledward June 25, 1895 FOREIGN PATENTS Number Country Date 184,847 France July 18, 1887 408,284 Germany Jan. 12, 1925 473,516 France Jan 14, 1915 306,954 Germany Nov. 26, 1915 744,258 France Apr. 18, 1933 481,806 France Oct, 24, 1916 

